Sven R. Kunze
srkunze at mail.de
Thu Sep 10 20:03:02 CEST 2015
On 10.09.2015 19:54, Steven D'Aprano wrote:
> I have a function which is intended for use at the interactive interpreter,
> but may sometimes be used non-interactively. I wish to change it's output
> depending on the context of how it is being called.
> If the function is being called as if it were a procedure or command, that
> is the return result is just ignored, I want to return one thing. But if it
> is being called where the return result goes somewhere, I want to return
> something else. Most importantly, I don't want to pass a flag to the
> function myself, I want the function to know its own context.
> I don't mind if it is CPython only, or if it is a bit expensive.
> def func():
> if procedure: # FIXME what goes here???
> return "Awesome"
> return 999
> Now I can do this:
> x = func()
> assert x == 999
> L = [1, 2, func(), 4]
> assert L == 999
> # interactive interpreter prints "Awesome"
> Is such a thing possible, and if so, how would I do it?
> If I did this thing, would people follow me down the street booing and
> jeering and throwing things at me?
But it it solve a problem, why not.
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